Hardness measuring: THE INS AND OUTS
Why are parts hardened?
Hardening parts is a process that increases the hardness and thus the wear resistance of a metal surface. The hardness of the material depends on the product, with each part having its own specifications. The correct hardness is determined based on its specific application. This can vary depending on requirements such as a smooth surface, wear resistance, and toughness. It is clear that the correct hardness is essential for optimizing the lifespan of the parts.
Hardness measurement
To check the hardness of the parts, they are measured. Depending on the measurement method used, the measurements can be expressed in Vickers (HV), Brinell (HB), or Rockwell (HRC). For example: The hardness of a torsion spring determines its resilience. If the spring is hardened too much, the material can become brittle and the torsion spring may break. Therefore, it is crucial that a torsion spring has the correct hardness. HACO pins and torsion springs are made from carbon-containing metals to increase their durability.
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